Finding the Fourth Proportional to 284,984.37, 393,256.76 and 157,657.23
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Solution
The fourth proportional to 284,984.37, 393,256.76 and 157,657.23 is: 217,554.99
Step by Step Solution
- Step 1: Write the proportion equation
284,984.37 : 393,256.76 = 157,657.23 : x - Step 2: Convert to fraction form
284,984.37/393,256.76 = 157,657.23/x - Step 3: Cross multiply
284,984.37x = 393,256.76 × 157,657.23 - Step 4: Simplify right side
284,984.37x = 61,999,770,672.09 - Step 5: Solve for x
x = 61,999,770,672.09/284,984.37 - Step 6: Final answer
x = 217,554.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.